Door operating mechanism



Dec. 19, 1933. E. R. BEEMAN ET AL DOOR OPERATING MECHANISM Filed Dec.28, 1931 hue/flora EDWIN 1?. BEE/VAN LLOYD 5- EDWARDS 5y f/ve/r rneysw/mx/u/P 5 [20' Referring to the drawingr Fig. 1 is a perspective view"showing an over Patented Dec. 19 I933 noon OPERATING MECHANISM-1 EdwinRQBeeman andLloyd B. Edwards, Mimic apolis, Minn.; said Edwards assignorto said Beeman Application December 28, 1931 Serial No. 583,427

4Claims. (o1. ass-59) Our present invention has forits object theprovision of an extremely simple and highly efficient mechanism foroperating doors for garages and the like that are mounted for movementfrom' 5 a closed vertical position to an open overhead horizontalposition; r

The invention, while intended for general use, is especially welladapted and designed for use in connection with a door mounted to swingbodily about a horizontal axis during its opening and closing movementand where there is very little head room above the opening in thebuilding for the door.

, Generally stated, the invention consists of the '15 novel devices-andcombinations of devices hereinafter described and defined in the claims,I In the accompanying drawing, which illustrates the invention, likecharacters indicate like parts throughout the several view sf head doorin its open position and the improved 7 mechanism for operating the sameand further diametrically illustrating one ofthe door posts at theopening in the building for the door;

Fig. 2 is a fragmentary view principally in section showing the door andits operator, as illustrated in Fig. '1, and further illustratinga porfOf the parts of the building illustrated, for thepurpose of showing theinvention applied in working position, it is important to note theceiling 6, the door opening 7, the door post or frame 8 at one side ofsaid opening and the door 9. The mounting for the door 9 includes a pairof horizontal track rails or ways 10, a pair of hanger bracketsll, apair of rollers 12, journaled on each hanger bracket 11 and arranged torun in one of is'the rails 10, and a pair of brackets 13 rigidly securedto the door 9 at the inner face and upper corners thereof and whichbrackets are secured to the hanger brackets 11 by a pair of axially.aligned pivot pins 1; which are parallel to the so'plane of the door 9and are spaced, by the brackets 13, inward of said door, see Fig. 5.Both track rails 10 extend longitudinally of the door 9, when open,below thetopof the door opening 8 and their front ends are rigidlysecured to the 65" building structure and their rear ends are rigidlyarms.

secured to a pair of hanger brackets 15 on the ceiling 6. l

The door 9, at its lower endportion, is carried during its opening andclosing movements andv supported, when in an open overhead position, bya pair of arms 16, :only one of which isshown, intermediately pivoted tothe door posts 8, as indi-.- cated at :17. The long endsof the arms 16are pivoted to the door 9, at its inner face and lower corners, and. apair of coiled upright compression springs 18 are mounted at their lowerends on brackets 19 secured to the door posts 8 and their upper ends areattached to the short endsof said The parts thus far described are ofwell-known construction and have been illustrated simply for the purposeof showing the invention applied" in working position. w w

Referringnow in detail to the improveddoori operator,- the numeral 20indicates a long in-' verted horizontal rack, which extendslongitudinally; of the door 9,'when open, and a driveni pinion 21-meshes with said rack. The'rack 20, is guided for straight line endwisemovement by:

' a shaft 22 and a tubular'mernber 23 telescoped onto said shaft forendwise sliding movement." Said shaft 22; at its rear end, is rigidlysecured to the ceiling 6, as indicated .at'24 and the tubu lar member 23is formed as a part of the back of the rackand extends parallel thereto.If desirable,- the shaft' 22, at its rear end, may :be.

secured to the rear wall of the building struedoor. 9, when open, andsaid shaft and tubular member, as well as the door 9 when open, areabove the tracks 10 and below the top of the door opening 8.

On the front end of. the tubular member 23 is rigidly secured an arm 25which, when the door is open, extends thereunder and its front end isdetachably secured by a pivot bolt 26 to a bracket 27 secured to'thedoor 9 at its inner face and at the transverse center thereof. The axesof the pivot pins 14 and the bolt 26 are aligned and the door 9, duringits opening and closing movements, swings about these axes withoutimparting lateral or angular movement ber 23 and arm 25. It will thus beseen that there is no pressure produced between the shaft 22' and thetubular member 23 that would tend to oausethem to bind and interferewith free to the rack 20, the shaft 22, the tubular memreciprocatorymovement of the rack 20 over the pinion 21.

The pinion 21 is driven in either direction to reciprocate the rack 20and open and close the door 9 from an electric motor 28 by transmissionmechanism '29 to said pinion. The motor 28 and transmission mechanism 29are secured to a channel plate 30 on the ceiling 6 and brackets 31 onsaid plate.

28, 29, 30 and 31 from the ceiling 6, the same may be mounted on one ofthe wallsof the building structure or any other suitable place.

From the illustrations in the drawing and the above description, it isevident that the improved door operator may be installed where there ispractically no head room whatsoever over the door opening 8, see Fig. 2.Or in other words, the operator does not require any more head room thanthat required for the door. If necessary to make an. installation thearm may be turned up instead of down, as shown, thus bringing the.operator below the plane of the door when open or the arm 25 dispensedwith and the member 23 directly pivoted to the door. It is also evidentthat the'operating mechanism positively locks the door closed.

If necessary for the'successfuloperation of a ber, "said twomembersextending longitudinally.

of the door when open, said rear membenat its rear end, being secured toa, relatively fixed support, said front. member being mounted on therear'member for free straight line endw'ise sliding movement, said frontmember, at its I front end, being hingedly attached'to the door andsupported therefrom, said two membersbeingrearwardly of the door in allof its positions, and substantially in the plane thereof when open,

If there is not-suf ficient head room for suspending the members andmeans for reciprocating the front member to open and close the door.

2. In a device of the class described, an overhead sliding door, meansfor guiding the door from a closed vertical position to an openhorizontal position, a front member, a rear member, saidtwo membersextending longitudinally of the door when open, said rear member, at itsrear end, being secured to a relatively fixed support, said front memberbeing mounted on the rear member for free straight line endwise slidingmovement, said front member having an arm rigidly secured to its frontend, said arm being hingedly attached to the door and supporting therespective end of the front member therefrom, and means forreciprocating the front member to open and close the door.

3. In a device of the class described, an overhead sliding door, meansfor guiding the door from a closed vertical position to an openhorizontal position, a tubular member and a shaft telescopicallyconnected and extending longitudinally of the door, when open, saidshaft, at

its rear end, being secured to a relatively fixed and means forreciprocating the tubular member to open and close the door.

4. In a device of the class described, an overhead sliding door, meansfor" guiding" the door from a closed verticalposition to an openhorizontal position and for supporting the same to swing about ahorizontal axis during its opene, ing and closing movements, a pair ofoverhead.

slidably connected members which extend longitudinally of the door, whenopened, one of said members being secured to a relatively fixed support,the other of saidmembers being hing-.- edly attached to the door insubstantially axial alignment with said horizontal axis,said two membersbeing rearwardly of the door in all of its positions and substantiallyin the plane thereof when open, and means for reciprocating the memberhingedly attached to the door .for opening and closing thedoor. 1

'. i EDWIN R.-BEEMAN.

LLOYD B. EDWARDS. j

